Bruins goalie Tuukka Rask had to deal with a lot of traffic in Game 4 of the Stanley Cup Final. / Greg M. Cooper, USA TODAY Sports

by Kevin Allen, USA TODAY Sports

by Kevin Allen, USA TODAY Sports

Situation: The Boston Bruins and the Chicago Blackhawks are tied 2-2 going into Saturday´s Game 5 of the best-of-seven Stanley Cup Final in Chicago (8 p.m. ET, NBC). The team that has won Game 5 in a 2-2 series has won the series 68% of the time in Stanley Cup history.

Goaltending matchup: Blackhawks' Corey Crawford (14-7, 1.86 GAA, .931 save percentage) vs. Bruins' Tuukka Rask (14-6, 1.83, .941). Now that the players have studied both goalies for four games, the consensus seems to be that you shoot high glove on Crawford and you attempt to bother Rask with heavy traffic.

Who's hot: Bruins C Patrice Bergeron has six goals in his past seven games and he has won 62% of his faceoffs in the postseason. He is on the list of Conn Smythe possibilities.

Who's not: Bruins C David Krejci has cooled off, even though he is still leading the NHL in playoff points. He has only four shots in his past three games, and no goals in his past five.

Lineup issues: Bruins rookie Carl Soderberg might draw into the lineup to play on the fourth line with Shawn Thornton and Rich Peverley. Kaspars Daugavins would be odd man out. Blackhawks' Marian Hossa (undisclosed) missed practice Friday and admits to being limited by his injury, but he is playing Game 5. Defenseman Nick Leddy only played 2:37 in Game 4, but coach Joel Quenneville said he expects him to play more in Game 5. "I thought the five guys in our rotation were getting the job done (in Game 5)," Quenneville said.

What the Bruins need to do: 1. Regain the level of efficiency they showed in the Pittsburgh series. They were uncharacteristically sloppy in Game 4. Their defense was not coach Claude Julien-caliber. 2. They need a good start in the United Center to try to reclaim some momentum. For opponents, it can feel like you are starting from behind after the crowd gets pumped up with their stirring national anthem. 3. Worst game to best game. They need to convince themselves that this is the key game of the series. They need their top line to out-produce the Bryan Bickell-Jonathan Toews-Patrick Kane line.

What the Blackhawks need to do: 1. Make the area around the Bruins net look like the Dan Ryan at rush hour. Wall-to-wall traffic, heavy congestion. 2. Continue to go hard at Zdeno Chara, continuing to hope that they wear him down. 3. Continue to minimize Boston´s faceoff advantage by sending wingers hard after those who are supposed to receive the draws.